P0616moderate severityPowertrain
Starter Motor Relay Circuit Low
on 2021 Mazda Mazda3 2.0L I4 · AWD
What this code means
Low voltage in starter relay circuit.
Symptoms
- No crank
- Weak cranking
Common causes
- Weak battery
- Corroded connection
- Wiring issue
Diagnostic steps
- Test voltage at relay
- Check connections
- Test battery
Repair notes
Repair wiring or replace relay.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1